Monitor



FIG. 1 is a perspective view of a monitor showing my new design with apanel shown opened;

FIG. 2 is a front view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a right side view thereof the left side view is the same asthe right side view;

FIG. 5 is a bottom view thereof; and,

FIG. 6 is a top view thereof.

The ornamental design for a monitor, as shown and described.